Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georgij V Ksendzyk, Isidor I Frumin, Vladimir S SirinfiledCriticalGeorgij V Ksendzyk
Priority to CS412477ApriorityCriticalpatent/CS194424B1/en
Publication of CS194424B1publicationCriticalpatent/CS194424B1/en